aboutsummaryrefslogtreecommitdiff
path: root/engines/parallaction/music.h
blob: eef249a7d48eb8291ef86523c355a8ca80cb158e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
/* ScummVM - Scumm Interpreter
 * Copyright (C) 2006 The ScummVM project
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.

 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.

 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * $URL$
 * $Id$
 *
 */

#ifndef PARALLACTION_MUSIC_H
#define PARALLACTION_MUSIC_H

#include "common/util.h"
#include "common/mutex.h"

#include "sound/mididrv.h"

class MidiParser;

namespace Parallaction {

class MidiPlayer : public MidiDriver {
public:

	enum {
		NUM_CHANNELS = 16
	};

	MidiPlayer(MidiDriver *driver);
	~MidiPlayer();

	void play(const char *filename);
	void stop();
	void updateTimer();
	void adjustVolume(int diff);
	void setVolume(int volume);
	int getVolume() const { return _masterVolume; }
	void setLooping(bool loop) { _isLooping = loop; }

	// MidiDriver interface
	int open();
	void close();
	void send(uint32 b);
	void metaEvent(byte type, byte *data, uint16 length);
	void setTimerCallback(void *timerParam, void (*timerProc)(void *)) { }
	uint32 getBaseTempo() { return _driver ? _driver->getBaseTempo() : 0; }
	MidiChannel *allocateChannel() { return 0; }
	MidiChannel *getPercussionChannel() { return 0; }

private:

	static void timerCallback(void *p);

	MidiDriver *_driver;
	MidiParser *_parser;
	uint8 *_midiData;
	bool _isLooping;
	bool _isPlaying;
	int _masterVolume;
	MidiChannel *_channelsTable[NUM_CHANNELS];
	uint8 _channelsVolume[NUM_CHANNELS];
	Common::Mutex _mutex;
};

} // namespace Parallaction

#endif